Fucoids on sheltered Atlantic littoral rock
Quick facts
Red List habitat type | code NEAA1.31 |
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Threat status | |
Europe | Data Deficient |
EU | Data Deficient |
Relation to |
|
Source | European Red List habitat factsheet |
European Red List of habitats reports | |
European Red List of habitats (Excel table) |
Summary
Dense blankets of fucoid seaweeds dominating sheltered to extremely sheltered rocky shores and/or in locally sheltered patches of rocky shore that are exposed/moderately exposed to wave action. The habitat is found in sheltered areas such as inlets and bays below the lichen dominated zone and above the kelp dominated zone in the sublittoral. It also occurs in sheltered patches on more wave exposed shores such as the north coast of Spain and Portugal.
Indicators of Quality
Both biotic and abiotic indicators have been used to describe marine habitat quality. These include: the presence of characteristic species as well as those which are sensitive to the pressures the habitat may face; water quality parameters; levels of exposure to particular pressure, and more integrated indices which describe habitat structure and function, such as trophic index, or successional stages of development in habitats that have a natural cycle of change over time.
There are no commonly agreed indicators of quality for this habitat, although particular parameters may have been set in certain situations e.g. protected features within Natura 2000 sites, where reference values have been determined and applied on a location-specific basis.
Threat status
Synthesis of Red List assessment
Local and/or seasonal factors often exert a substantial influence on intertidal habitats making it difficult to distinguish any long-term trend across the region. This is complicated further because differences between localities are often linked to differences in geographical latitude and, therefore, to differences in climatic traits like temperature and/or ice cover. Where this habitat has been studied in detail some trends in quantity and quality have been reported over various time scales however, there is insufficient information to provide an overall estimate of historical, recent and possible future trends in quantity and quality.
This habitat has a large EOO and AOO, and therefore qualifies as Least Concern under criterion B. However the habitat is assessed as Data Deficient both at the EU 28 and EU 28+ levels due to lack of information on trends in quantity and quality.
EU | |
Red List Category | Red List Criteria |
Data Deficient |
Europe | |
Red List Category | Red List Criteria |
Data Deficient |
Confidence in the assessment
Pressures and threats
- Pollution
- Oil spills in the sea
- Other forms of pollution
- Climate change
- Changes in abiotic conditions
- Temperature changes (e.g. rise of temperature & extremes)
Habitat restoration potential
Trends in extent |
|
Average current trend in quantity |
|
Unknown | Unknown |
EU28 | EU28+ |
Trends in quality |
|
Average current trend in quality |
|
Unknown | Unknown |
EU28 | EU28+ |
Conservation and management needs
List of conservation and management needs
- Measures related to wetland, freshwater and coastal habitats
- Restoring/Improving water quality
- Measures related to marine habitats
- Other marine-related measures
- Measures related to spatial planning
- Other marine-related measures
- Establish protected areas/sites
- Legal protection of habitats and species
- Measures related to hunting, taking and fishing and species management
- Other species management measures
Distribution
Geographic occurrence and trends
Seas | Present or presence uncertain | Current area of habitat (Km2) | Recent trend in quantity (last 50 years) | Recent trend in quality (last 50 years) |
---|---|---|---|---|
Bay of Biscay and the Iberian Coast | Present | Unknown | Unknown | Unknown |
Celtic Seas | ||||
Greater North Sea | ||||
Macaronesia | ||||
Kattegat |
Extent of Occurrence, Area of Occupancy and habitat area
Extent of Occurrence (EOO) (Km2) | Area of Occupancy (AOO) | Current estimated Total Area | Comment | |
---|---|---|---|---|
EU28 | 422,653 | 658 | Unknown | EOO and AOO have been calculated on the available data. Although this data set is known to be incomplete the figures exceed the thresholds for threatened status. |
EU28+ | 658 | Unknown | EOO and AOO have been calculated on the available data. Although this data set is known to be incomplete the figures exceed the thresholds for threatened status. |
EOO = the area (km2) of the envelope around all occurrences of a habitat (calculated by a minimum convex polygon).